From d81836bd2332e42136a15a72961c0b9295d94b58 Mon Sep 17 00:00:00 2001
From: Olaf Meeuwissen <paddy-hack@member.fsf.org>
Date: Mon, 19 Oct 2015 21:04:53 +0900
Subject: [PATCH] Add automake subdir-objects option

This addresses autoreconf output such as:

  tools/Makefile.am:37: warning: source file '../backend/sane_strstatus.c' is in a subdirectory,
  tools/Makefile.am:37: but option 'subdir-objects' is disabled

The option was introduced in automake version 1.9 and is slated for
unconditional activation with automake-2.0.
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index b55e7bed6..07ccae636 100644
--- a/configure.ac
+++ b/configure.ac
@@ -12,7 +12,7 @@ dnl ***********************************************************************
 
 m4_ifdef([AC_CONFIG_MACRO_DIR], [AC_CONFIG_MACRO_DIR([m4])])
 
-AM_INIT_AUTOMAKE
+AM_INIT_AUTOMAKE([1.9 subdir-objects])
 dnl Turn off feature were automake will automatically run autoreconf.
 dnl This is because we check in generated files into CVS which has
 dnl known timestamp issues.